Remote I/O Module (IO-16-REM-H)
INSTALLATION INSTRUCTIONS
FEATURES
• The IO-16-REM-H expands a WEBs-AX controller
(controller with NiagaraAX-3.4.51 or later and an
available RS-485 port; see “System Planning,” page 2
for more details) with 16 I/O points that can be
remotely located, including:
• 8 – universal inputs (UIs), compatible with 0–
10Vdc, 4–20mA, dry contacts, pulsing dry
contacts, 0–100K ohm resistive, or Type 3
thermistor temperature sensors.
• 4 – digital outputs with Form-A relay contacts,
for on/off control of loads up to 24Vac/dc, at
0.5A max.
• 4 – 0–10Vdc analog outputs for analog control
of loads at 2.5K ohm minimum, or 4mA drain
maximum.
APPLICATION
This document covers the mounting and wiring of a Remote
I/O Module (IO-16-REM-H), for expanding a WEBs-AX or
ComfortPoint 200, 600, or 700 series controller or SEC-H-600
controller. It assumes that you are an engineer, technician, or
service person who is performing system design or
installation. Please read through this entire document before
beginning the installation procedures.
NOTE: This document does not discuss mounting and wiring
of other components, or software configuration. For
more information on these topics, refer to documents
listed in “Related Documentation,” page 2.
• The IO-16-REM-H modules use DIN rail mounting, and
have two end-mounted 6-pin connectors that support
direct-chaining (in-line attachment) to other
IO-16-REM-H modules.
• Communications to the remote controller are
accomplished using RS-485 multidrop on 3 wires of an
end-mounted 6-pin connector or from an RS-458
Option Card. The other 3 wires on the end-mount
connector are primary DC power and battery backup
for the module, which can be supplied from that same
controller if that controller is equipped with external
battery backup. Alternatively, you can power the
IO-16-REM-H locally with a DIN-mountable NPB-PWRUN-H universal AC power supply, or a third-party
12–15Vdc power supply, and wire only the RS-485 bus
back to the parent controller.
Contents
Features ........................................................................... 1
System Planning .............................................................. 2
Preparation ....................................................................... 5
Precautions ...................................................................... 5
Installation and Start-up Outline ....................................... 6
Physical Mounting ............................................................ 7
IO-16-REM-H Board Layout and Terminals ..................... 8
Wiring Details ................................................................... 9
Grounding ........................................................................ 9
Power from controller 6-position connector ...................... 10
Power from local NPB-PWR-UN-H module ......................
Power from third party 12–15Vdc power supply ...............
RS-485 Communications .................................................
Inputs ................................................................................
Outputs .............................................................................
Nrio16 Module (Software) Representation .......................
Power up and Initial Checkout ..........................................
Replacement Parts ...........................................................
Replacing the IO-16-REM-H ............................................
Certifications .....................................................................
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REMOTE I/O MODULE (IO-16-REM-H)
RELATED DOCUMENTATION
For more information on mounting and wiring a system, refer to appropriate
• WEB-201, CP-201, WEB-600, CP-600 Installation Instructions, Form # 95-7722.
• WEB-202-XPR, CP-202-XPR, WEB-602-XPR, CP-602-XPR Installation Instructions, Form # 95-7775.
• WEB-700, CP-700 Installation Instructions, Form # 95-7776.
• SEC-H-600 Installation Instructions, Form # 95-7759.
For software configuration details on the I/O points provided by the IO-16-REM-H module, refer to:
• NiagaraAX NRIO Guide.
SYSTEM PLANNING
The maximum number of IO-16-REM-H modules supported by a controller differs according to its model type. In addition,
depending on the station resource usages in a controller, the IO-16-REM-H modules may be limited to fewer than the maximum
specified in order to retain acceptable system operation. See “Supported numbers of IO-16-REM-H” on page 2.
Other considerations also apply when adding IO-16-REM-H modules. For example, a IO-16-REM-H module under a WEB-201,
CP-201, WEB-600, or CP-600 series controller will not have the inherent “battery backup” feature provided by the WEB or CP
700 controller platform. See “About battery-backup operation” on page 3.
Finally, when cabling power to IO-16-REM-H modules located in locations other than the controller, allowances must be made for
“voltage drops” introduced by cabling distances. See “Voltage drop considerations” on page 3.
Supported numbers of IO-16-REM-H
Table 1 below provides a quick comparison of controller models compatible with IO-16-REM-H modules, including the maximum
possible number of IO-16-REM-H modules supported.
NOTE: Station operation of each controller at maximum limits below with only the necessary NiagaraAX software components
(Nrio driver and associated points) is roughly at 50% resource usage, without other driver networks, control logic, and so
on. Therefore, maximum numbers may be less for a controller, particularly if an existing WEB-201, CP-201, WEB-600 or
CP-600 is connected to one or more “Ndio based” (IO-34-H, IO-16-H) modules.
Currently, only controller models listed below, at NiagaraAX-3.4 or later, support IO-16-REM-H modules.
Table 1. Maximum number of IO-16-REM-H modules supported, by compatible controller platform models.
Controller model
Max. Number of
IO-16-REM-Ha
WEB-201, CP-201
4
On-board RS-485 port or
NPB-2X-RS485 Option Card b
WEB-202-XPR, CP-202-XPR
3
WEB-600, CP-600
16
6 Position Connector w/ Power and Battery Avail.c
On-board RS-485 port or
NPB-2X-RS485 Option Card b
WEB-602-XPR, CP-602-XPR
15
6 Position Connector w/ Power and Battery Avail. c
WEB-700, CP-700
16
6 Position End Connector w/ Power and Battery Avail. c
SEC-H-600
4d
N/A
NPB-2X-RS485 Option Card b
No connection to SEC-H-201
SEC-H-201
6-Position Power/RS-485
a
Maximum number of IO-16-REM-H modules may be reduced due to utilization of controller resources.
power to modules from an NPB-PWR-UN-H module or a battery-backed 12-15V DC Power Supply.
c Approximately 4 IO-16-REM-H modules may be powered by the controller power supply. Calculate total current draw of the
controller and powered devices to determine the actual count. Additional IO-16-REM-H modules may be powered by an
NPB-PRW-UN-H power supply or a battery-backed 12-16 V DC Power Supply.
d
A total of 15 Modules may be connected to an SEC-H-600 controller. Connecting IO-16-REM-H will reduce the number of
Security Modules that can be connected.
b Provide
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REMOTE I/O MODULE (IO-16-REM-H)
About battery-backup operation
When IO-16-REM-H modules are powered by controller platforms with 6-position power/RS-485 connectors, that is, wired to the
PS+, PS-, and BB terminals, they can benefit from “battery backed” protection against system power events. Note this requires
the controller to have the optional (external) sealed lead acid battery installed—as the controller’s internal NiMH battery provides
“power blip” backup only for its on-board circuitry, as well as a “graceful shutdown” of its running station, if a longer power outage
occurs.
NOTE: The other “direct attachment type” I/O expansion modules (IO-16-H, IO-34-H, using Ndio driver) already provide this
type of “shutdown protection” described above.
An IO-16-REM-H with battery backup can provide continuous system operation during a power event—essentially making it a
“non event” for both the controller and the IO-16-REM-H module. Depending on the capacity of the external battery(ies), this
backup operation can extend over many minutes of AC power loss, and/or over multiple successive power blips. An
IO-16-REM-H wired this way is often described as “powered by the controller”, although during normal operation, sometimes
power is actually supplied by the NPB-PWR-UN-H module attached to, and powering, the controller itself.
Note this “supplied by controller” battery-backup operation is not available when using IO-16-REM-H modules with WEB-201/600
or CP-201/600 series controllers, that is controllers without the 6-position power/RS-485 connector. Or, in any scenarios where
IO-16-REM-H modules must be located many hundreds of feet away from the controller (cabling “voltage drop” issues). In these
cases, you must locally power those IO-16-REM-H modules, using one of two methods:
• Local NPB-PWR-UN-H attachment to the IO-16-REM-H module(s). Although convenient, be aware that this invites power
event issues. See “Operation without battery-backup.”
• Third party, battery-backed 12-15Vdc power supply, wired to the PS+ and PS- terminals of the IO-16-REM-H module’s 6position end connector. This is typically recommended, for reasons noted below.
Note that power wiring for all different scenarios is included in this document. See “Wiring Details,” page 9.
Operation without battery-backup
If a IO-16-REM-H module is powered locally with a NPB-PWR-UN-H (for example, a WEB-600 or CP-600 controller), and a
momentary AC power loss occurs, a number of undesirable things can result, including:
• Load cycling from IO-16-REM-H relays dropping out, including several seconds lag to first re-establish communications with
the controller (Nrio driver) before relays can pull in again, as needed.
• Totalized “counts” zeroed out.
• History (logging) entries for associated IO points as “down,” as well as Nrio “device down” alarms.
Additionally, loss of power without battery backup makes an IO firmware upgrade a risky operation. Such an upgrade is initiated
from the “Nrio Device Manager” view (in a station connection to the controller). If this upgrade process is interrupted by a
IO-16-REM-H power cycle, the module may be rendered inoperable—and will likely need to be replaced.
Therefore, consider powering IO-16-REM-H modules with a battery-backed 12V power supply, as necessary.
Voltage drop considerations
When using the controller and its backup battery to power IO-16-REM-H modules, and some modules are not in the same
enclosure with the controller, you must be aware of voltage drops in the connecting “trunk power” cabling. Typically, this applies
only if modules are located in different locations—that is, not near the controller.
NOTE: The 15Vdc power supply and the backup battery(ies) charged by the controller must always be located nearby the
controller, either in the same enclosure (typical), or in an adjacent enclosure.
Note that each IO-16-REM-H draws (at most, when all four relays are pulled in) 0.125A, and thus can introduce voltage drop
when long cabling distances are used for power/backup battery. In addition, when sizing the sealed lead-acid battery(ies) for a
controller, you should factor in additional Ah capacity according to the numbers of IO-16-REM-H modules. Table 2 provides a
summary of IO-16-REM-H power consumption for these purposes.
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REMOTE I/O MODULE (IO-16-REM-H)
Table 2. Amps/Watts, and Recommended Minimum 12V SLA battery A-Hr capacities, per IO-16-REM-H.
Max per
System
Device
IO-16-REM-H
See Table 1.
Amps / W used
@ 15Vdc (each)
0.125 A / 1.88 W
12V Backup Battery (4
hours)
min. recommended Ah
(each)
0.65 Ah
Notes
Has 4 on-board relays.
Undersized selection of power cabling can result in unacceptably high voltage drops, and remotely located IO-16-REM-H
modules may not operate correctly—especially during emergency (battery backup) operation.
The maximum allowable voltage drop due to wiring is 1.5V. This equates to the difference in voltage measured across the
PS+ and PS- at the source controller power supply, and the PS+ and PS- at the furthest expansion module (IO-16-REM-H). Or,
when powered by battery backup, the difference in voltage measured across the BB and PS- at the source controller, and the BB
and PS- at the furthest expansion module (IO-16-REM-H).
Table 3 provides a voltage drop chart, showing voltage drops per 100 feet of paired wire of different gauges (AWG), at different
load amps.
Table 3. Voltage Drop Per 100 Feet Run (30m) of Paired Wire.
Gauge
(AWG)
0.10A
0.25A
0.5A
Load Current
1.0A
1.5A
2.0A
4.0A
10
12
14
16
18
20
22
0.020
0.032
0.050
0.080
0.127
0.202
0.320
0.05
0.08
0.13
0.20
0.32
0.50
0.80
0.10
0.16
0.25
0.40
0.64
1.01
1.60
0.20
0.32
0.50
0.80
1.27
2.02
3.20
0.30
0.48
0.75
1.20
1.91
3.03
4.80
0.40
0.64
1.01
1.60
2.54
4.03
6.40
0.80
1.27
2.02
3.20
5.08
8.07
12.81
For an example, consider a system where two IO-16-REM-H modules are mounted remotely in a location 500 feet (366m) away.
In this example, worst-case amps used by each remote IO-16-REM-H is 0.125A. Looking at Table 3 at the 0.25A column, a #16
AWG cable pair drops 0.20V per 100 feet, meaning a 500 foot run would drop slightly over 1V—this would be a good choice over
an #18 AWG cable, which would drop over 2V (above the 1.5V maximum allowable drop).
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REMOTE I/O MODULE (IO-16-REM-H)
PREPARATION
Unpack the IO-16-REM-H module and inspect the contents of the package for damaged or missing components. If damaged,
notify the appropriate carrier at once, and return for immediate replacement (see “Returning a Defective Unit,” page 20). See the
next sections “Included in this Package” and “Material and Tools Required”.
Included in this Package
Included in this package you should find the following items:
• a Remote I/O Module (IO-16-REM-H).
• this Remote I/O Module (IO-16-REM-H) Mounting and Wiring Instructions, Form Number 95-7768.
• a hardware bag containing the following items:
— Four (4) pin-mount, 6-position, screw-terminal connectors for connection of universal inputs, analog outputs, and relay
outputs. For more details, see “About Screw Terminal Connectors,” page 8.
— One (1) 6-position screw terminal end-plug, for wiring RS-485 communications from the parent controller, as well as
15Vdc power and battery backup.
— One (1) grounding wire, with quick-disconnect 0.187" female connector.
— Eight (8) 499-ohm resistors, used for 4–20mA inputs.
Material and Tools Required
The following supplies and tools are required for installation:
• Approved 12–15Vdc power supply source and (optional) 12Vdc backup battery source, by either:
— Wiring to the remote parent controller’s 6-position “Powered RS-485” connector, such as on a SEC-H-600 controller. This
is the recommended method.
— Using a DIN-mountable NPB-PWR-UN-H power supply to furnish 15Vdc power to the IO-16-REM-H.
— Using a third-party 12–15Vdc power supply, with output regulated to within ± 4%.
• If DIN mounting, a DIN rail, type NS35/7.5 (35mm x 7.5mm) and DIN rail end-clips (stop clips), and screws for mounting. See
Fig. 1. If DIN rail not used, suitable screws for mounting base of Remote I/O Module module.
• Suitable tools and supplies for making all wiring terminations.
PRECAUTIONS
This document uses the following warning and caution conventions:
CAUTION
Cautions remind the reader to be careful. They alert readers to situations where there is a chance that the reader
might perform an action that cannot be undone, might receive unexpected results, or might lose data. Cautions
contain an explanation of why the action is potentially problematic.
WARNING
Warnings alert the reader to proceed with extreme care. They alert readers to situations where there is a chance
that the reader might do something that can result in personal injury or equipment damage. Warnings contain an
explanation of why the action is potentially dangerous.
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REMOTE I/O MODULE (IO-16-REM-H)
Safety Precautions
The following items are warnings of a general nature relating to the installation and start-up of a compatible controller. Be sure to
heed these warnings to prevent personal injury or equipment damage.
WARNING
A 15Vdc circuit powers the IO-16-REM-H module from the controller. Disconnect power before installation or
servicing to prevent electrical shock or equipment damage.
Make all connections in accordance with national and local electrical codes. Use copper conductors only.
To reduce the risk of fire or electrical shock, install in a controlled environment relatively free of contaminants.
Controllers and I/O modules are only intended for use as monitoring and control devices. To prevent data loss or
equipment damage, do not use them for any other purposes.
Static Discharge Precautions
These items are cautionary notes to help prevent equipment damage or loss of data caused by static discharge.
CAUTION
Static charges produce voltages high enough to damage electronic components. The microprocessors and
associated circuitry within a Remote I/O Module are sensitive to static discharge. Follow these precautions when
installing, servicing, or operating the system:
Work in a static-free area.
Discharge any static electricity you may have accumulated. Discharge static electricity by touching a known,
securely grounded object.
Do not handle the printed circuit board (PCB) without proper protection against static discharge. Use a wrist
strap when handling PCBs, with the wrist strap clamp secured to earth ground.
Module Connection Precautions
CAUTION
Do not connect more than the maximum number of IO-16-REM-H modules to the RS-485 port of the parent
controller. See “Supported numbers of IO-16-REM-H,” page 2.
INSTALLATION AND START-UP OUTLINE
NOTE: If installing the controller and IO-16-REM-H module at the same time, please refer to the appropriate controller Mounting
& Wiring Guide document to install the controller.
The major steps to installing and starting the IO-16-REM-H module are outlined as follows:
1.
2.
3.
Physically mount the IO-16-REM-H module onto DIN rail. See “Physical Mounting.” If directly attaching to other modules,
ensure that the 6-position end connector(s) are properly seated into the end connectors of the other units. Note the previous “Module Connection Precautions” on page 6.
Make wiring connections for grounding, power, RS-485 communications, and I/O points. See “Wiring Details,” page 9.
Apply power and perform an initial checkout. See “Power up and Initial Checkout” on page 18.
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REMOTE I/O MODULE (IO-16-REM-H)
PHYSICAL MOUNTING
The following applies to mounting a IO-16-REM-H Remote I/O Module:
• You can mount the unit in any orientation. It is not necessary to remove the cover before mounting.
• Mounting on a 35mm wide DIN rail is recommended. The IO-16-REM-H unit base has a molded DIN rail slot and
locking clip, which simplifies mounting 2 or more units together, and/or to a NPB-PWR-UN-H power supply. Mounting
on a DIN rail ensures accurate alignment of connectors between all modules.
• If DIN rail mounting is impractical, you can use screws in mounting tabs on the IO-16-REM-H. Mounting tab
dimensions are on page 22 of this document.
TO MOUNT IO-16-REM-H MODULE ON INSTALLED DIN RAIL
1.
Position the IO-16-REM-H module on the rail, tilting to hook DIN rail tabs over one edge of the DIN rail (Fig. 1).
2.
Use a screwdriver to pry down the plastic locking clip, and push down and in on the IO-16-REM-H, to force the locking clip to snap over the other edge of the DIN rail.
3.
Slide the IO-16-REM-H module along the DIN rail to its intended location.
4.
If connecting to another module already mounted, seat its 6-position plug into that module’s connector socket.
5.
Install DIN rail end clips to secure the assembly, or install screws in mounting tabs.
6.
Repeat this for all items, until all are mounted on the DIN rail(s), firmly connected to each other, and secured with DIN
rail end clips or mounting tab screws.
,
Mounting on DIN Rail
Removing from DIN Rail
NPB-PWR-UN-H
(if used for power)
6-position
connector plug
with cabling to
controller and
other remote
modules.
Install DIN
rail end clip
at left end of
assembly
IO-16-REM-H
IO-16-REM-H
IO-16-REM-H
Secure with screws in two
mounting tabs on right side
of last unit in assembly.
NOTE: Be careful screws
do not twist or torque unit on
the DIN rail!
Fig. 1. IO-16-REM-H module DIN mounting details.
NOTE: To remove a IO-16-REM-H module from DIN rail, remove DIN rail end clips or mounting tab screws, and (if applicable)
slide it away from other modules. Insert a screwdriver in the center plastic locking tab and pull downwards, then lift the
unit outwards.
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IO-16-REM-H BOARD LAYOUT AND TERMINALS
The IO-16-REM-H module provides 8 universal Inputs, 4 digital Relay Outputs, and 4 0–10Vdc Analog Outputs. Wiring terminal
positions are shown below (Fig. 2), along with LED locations.
Analog Vdc Outputs
(AOs) 1–4
AO1
0V
AO2
AO3
0V
AO4
D1
1C2
D2
D3
3C4
D4
Digital Relay Outputs
(DOs) 1–4
RS-485 Status LED
Relay Output LEDs
PS–
PS+
6 Pin
Power In
RS-485
(Expansion
Bus)
U8
U4
U5
OV
U6
U7
OV
Universal Inputs
(UIs) 1–4
U1
OV
U2
U3
OV
EARTH
BB
RS-485 –
RS-485 +
RS-485 S
6 Pin Connector
(Expansion Bus)
includes RS-485
Earth Grounding
Connector Lug
Universal Inputs
(UIs) 5–8
Fig. 2. Remote I/O Module Wiring Terminal Locations (screw terminal connectors shown installed).
About Screw Terminal Connectors
Screw-terminal connectors are shipped loose in a separate hardware bag. If desired, you can make wiring terminations to
connectors before installing on the IO-16-REM-H circuit board pins. Removal of the pin-mounted connectors may be difficult,
especially if they are pushed all the way down and wiring has been landed.
In general, it may be easiest to wire to loose connectors (held next to pins), then install them after completing.
CAUTION
Before using the method below to remove connectors, remove all power to the IO-16-REM-H, and remove power
to any other connected external devices. Otherwise, a short circuit will result!
To remove a pin-mounted connector plug using needle nose pliers, with all power removed (see Caution above ).
• Insert the tips of the pliers into the outermost wiring termination ports of the connector. Note that if wiring is already
landed in those ports, you may need to remove those wires first.
• With a gentle rocking motion, pull upwards, perpendicular to the circuit board.
• The connector will come free from the circuit board pins. If you removed wiring from the outermost connector ports,
reconnect that wiring as it was before.
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REMOTE I/O MODULE (IO-16-REM-H)
WIRING DETAILS
See Fig. 2 to locate connectors and other components on the Remote I/O Module.
Make connections to the Remote I/O Module in the following order.
1.
2.
3.
4.
5.
Connect the earth grounding wire (with spade connector) from the earth ground lug on the IO-16-REM-H to a nearby earth
grounding point. See the “Grounding” section on page 9 for details.
Wire to supply power to the IO-16-REM-H, but do not energize the power source until all other wiring is completed.
Depending on how you are powering the IO-16-REM-H, methods differ:
a. If powering the IO-16-REM-H from a controller with a 6-position “Powered RS-485” connector (supplies 15Vdc and battery backup on 3 wires of this connector), unplug this connector at the controller. Then wire to the 6-position connector
plug for each assembly of IO-16-REM-H modules, in a “shortest route” fashion. See “Power from controller 6-position
connector,” page 10.
b. If powering the IO-16-REM-H from a local NPB-PWR-UN-H power supply module, wire the disconnected AC line circuit to the 2-position terminal block under the NPB-PWR-UN-H’s cover.
See “Power from local NPB-PWR-UN-H module” on page 11.
c. If powering the IO-16-REM-H from a third-party 12–15Vdc power supply, wire the positive and negative lines from the
power supply to the PS+ and PS– terminals of the 6-position end connector plug.
See “Power from third party 12–15Vdc power supply” on page 12.
Connect RS-485 wiring between the IO-16-REM-H and the controller, and (if applicable) to other remote IO-16-REM-H
modules, in a continuous multidrop fashion. See “RS-485 Communications” on page 13.
Connect I/O wiring. See sections “Inputs” on page 13, and “Outputs” on page 16.
Apply power to the unit. See “Power up and Initial Checkout,” page 18.
Grounding
An earth ground spade lug (0.187") is provided on the circuit board of the IO-16-REM-H (and NPB-PWR-UN-H) for connection to
earth ground. For maximum protection from electrostatic discharge or other forms of EMI, connect each device’s earth ground
using a #16 AWG or larger wire. Keep these wires as short as possible.
See Fig. 3 for the location of the earth grounding wire for both the IO-16-REM-H and NPB-PWR-UN-H.
One or more
IO-16-REM-H
modules
IO-16-REM-H
IO-16-REM-H
NPB-PWR-UN-H
(if used for power)
Earth Ground
Fig. 3. Earth ground connection required to each IO-16-REM-H module as well as NPB-PWR-UN-H (if using).
NOTE: Connect any remote IO-16-REM-H modules to a nearby earth ground in the same manner.
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REMOTE I/O MODULE (IO-16-REM-H)
Power from controller 6-position connector
If powering one or more IO-16-REM-H modules from a controller equipped with a 6-position “Powered RS-485” connector, the
15Vdc and 12V backup battery (BB) is typically routed to remote modules using a 3-conductor with shield cable. The remaining 3
conductors are used for RS-485 communications between the controller and the IO modules, using a separate shielded twisted
pair cable. See Fig. 5
NOTE: If the controller is not connected to a (optional, external) sealed lead-acid battery, the “BB” wire is not required. This permits use of a single pair shielded cable, versus a 3-conductor with shield cable.
For power budgeting purposes, estimate each IO-16-REM-H module to consume 2W nominal (125mW @ 15V). Typical
current will be less— as this estimate factors in all four relays being pulled in.
Do not apply power (plug in the 6-position connector at the controller) until all other wiring is completed. See “Power up
and Initial Checkout,” page 18.
Connect shield wire to
ground at one end only.
Controller
with 6position
“powered
RS-485”
connector
PS-
PS–
PS+
BB
PS–
PS+
BB
B
B
PS–
PS+
BB
PS+
Power Supply (15V) and 12V Backup Battery is routed to remote
IO modules using a 3-conductor with shield cable. Use the
shortest wiring route possible for power wiring—star, tee, bus,
and loop topologies are all permissible.
NOTE: The “BB” wire is needed only if the controller has an
external, connected, sealed lead-acid backup battery.
RS-485 communications must be “daisy-chained” to remote IO
modules using a separate shielded twisted-pair cable.
IO-16-REM-H
485
S485
+485
–
+
S
PS
+ PS
-
R
S-485R
S-485+
485G
N
D
–
+
S
B
B
–
+
S
IO-16-REM-H
Connect RS-485 Shield wire
to ground at one end only.
-
To more
IO-16-REM-H
Fig. 4. IO-16-REM-H modules powered by controller connection (RS-485 wiring also shown).
In some cases, some number of IO-16-REM-H modules may be powered this way (from controller), while others may be powered
locally using either a NPB-PWR-UN-H power supply module or a third-party 12–15Vdc power supply. This may be advisable
when IO modules are located long distances from the controller, to avoid excessive voltage drops due to wiring resistances. See
the following sections:
• “Power from local NPB-PWR-UN-H module,” page 11
• “Power from third party 12–15Vdc power supply,” page 12
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REMOTE I/O MODULE (IO-16-REM-H)
Power from local NPB-PWR-UN-H module
If powering IO-16-REM-H modules from a directly-attached AC power supply (NPB-PWR-UN-H module), wire the AC circuit to
the NPB-PWR-UN-H’s 2-position terminals (must remove cover). See Fig. 5, left.
WARNING
A 120Vac or 240Vac circuit powers the NPB-PWR-UN-H. Disconnect power to this circuit before installation to
prevent electrical shock of equipment damage.
Make all connections in accordance with national and local electrical codes. Use copper conductors only.
Do not exceed the 30W capacity of NPB-PWR-UN-H by the powered devices.
NOTE: For power budgeting purposes, estimate each IO-16-REM-H module to consume 2W nominal (125mW @ 15V). Typical
current will be less— as this estimate factors in all four relays being pulled in.
For other wiring on the 6-position end connector, see “RS-485 Communications,” page 13.
Do not apply power (energize the NPB-PWR-UN-H) until all other wiring is completed. See “Power up and Initial Checkout,” page 18.
NPB-PWR-UN-H
with cover removed
IO-16-REM-H
IO-16-REM-H
PS–
120 or 240Vac
50–60 Hz
Single Phase
PS+
LN
Line
Earth Ground
Neutral
PS–
PS+
IO-16-REM-H
IO-16-REM-H
NOTES: Not shown is RS-485 Communications
wiring, on the bottom 3 positions of the 6-position
connector plugs.
Here, terminal “BB” is not used, and may be left
unwired.
Fig. 5. NPB-PWR-UN-H power supply module used to power IO-16-REM-H modules.
If the NPB-PWR-UN-H powers additional IO-16-REM-H modules (not attached in same assembly), wire a single pair cable with
shield between assemblies, connecting PS– to PS–, and PS+ to PS+ in a “shortest route” fashion. See Fig. 5, right.
11
95-7768—03
REMOTE I/O MODULE (IO-16-REM-H)
Power from third party 12–15Vdc power supply
IO-16-REM-H modules can be powered by a third-party, 12V–15Vdc power supply, as an alternative to using a NPB-PWR-UN-H
power supply module. A “battery backed” power supply is recommended. This provides power to the IO module(s) during AC
power loss scenarios.
Fig. 6 shows wiring for two assemblies of IO-16-REM-H modules powered by a battery-backed power supply.
NOTE: For power budgeting purposes, estimate each IO-16-REM-H module to consume 2W nominal (125mW @ 15V). Typical
current will be less— as this estimate factors in all four relays being pulled in.
For other wiring on the 6-position end connector, see “RS-485 Communications,” page 13.
Do not apply power (energize the power supply) until all other wiring is completed. See “Power up and Initial Checkout,”
page 18.
Single pair cable from power supply enclosure
to IO-16-REM-H enclosure (PS-, PS+).
Ground shield drain wire at one end only.
–+
PS–
Battery-backed
12-15Vdc Power
Supply
PS+
IO-16-REM-H IO-16-REM-H
DC
Voltage
Output
AC Line
Source
Power
PS–
PS+
Battery
Battery
IO-16-REM-H
NOTES: Not shown is RS-485 Communications wiring, on
the bottom 3 positions of the 6-position connector plugs.
Here, terminal “BB” is not used, and may be left unwired.
Fig. 6. Third-party 12Vdc, battery backed, power supply powering IO-16-REM-H modules.
NOTE: Power must be regulated to within ± 4%.
The power supply and its enclosure must be UL 294 approved.
Power supply models furnishing 12Vdc output are the most commonly available.
Only remote IO-16-REM-H modules can be powered by a 12Vdc power supply—the controller requires 15Vdc.
Depending on controller model, this 15Vdc may be furnished by an integral power supply, or from an external power
supply module, such as the NPB-PWR-UN-H. See the appropriate controller (model) Mounting & Wiring Guide document for details.
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REMOTE I/O MODULE (IO-16-REM-H)
RS-485 Communications
RS-485 communications from the controller to each IO-16-REM-H module (or assembly of modules) requires a continuous
“daisy-chain” wiring topology using a shielded, twisted-pair cable. Wire between device assemblies using the 6-position end
connector plugs. Use shielded 18-22AWG wiring (refer to the TIA/EIA-485 standard).
Wire in a continuous multidrop fashion, meaning “plus to plus,” “minus to minus”, and “shield to shield.” Connect the shield to
earth ground at one end only, such as at the controller. See Fig. 7.
Controller RS-485 Port,
either on the 6-position
“Pwr/485” connector or a
separate 3-position
RS-485 port.
s+–
or
–
+
s
Connect RS-485
shield wire to ground
at one end only.
IO-16-REM-H
Shielded,
twisted pair
cabling
–
+
s
IO-16-REM-H
Terminals on the
6-position
connector plugs
used for RS-485
between
assemblies.
IO-16-REM-H
–+s
–+s
–+s
Fig. 7. RS-485 wiring from the controller to one or more IO-16-REM-H modules uses a “daisy-chain” connection.
Inputs
Each of the 8 universal inputs (UI) can support any one of the following:
• Type-3 10K ohm Thermistor (also see Caution on page 14)
• Resistive 0—100K ohms
• 0–10 Vdc
• 4–20 mA
• Binary Input
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95-7768—03
REMOTE I/O MODULE (IO-16-REM-H)
Thermistor
Inputs support 10K Thermistor temperature sensors. Input accuracy is in the range of ±1% of span. By default, conversion is for
a standard Type 3 thermistor sensor, with a sensor range of -10° to 135°F (23.3° to 57.2°C). Using a conversion type of “Tabular
Thermistor,” you can specify a different thermistor response curve, by importing a thermistor curve .xml file. Currently, the kitIo
module contains an xml folder with thermistor curves for a various thermistor temperature sensors. You can also edit and export
(for reuse) customized thermistor curve xml files. See the NiagaraAX NRIO Guide for details.
Fig. 8 shows the wiring diagram.
Cut and tape
shield wire back at
Thermistor.
UI1 0V UI2 UI3 0V UI4
10K Thermistor
Use point: ThermistorInputPoint
Shielded, Twisted
Cable, 61m (200 ft)
maximum
Shield
Stud in enclosure
Fig. 8. Thermistor wiring.
Resistive 0—100K ohms
Inputs can read a resistive signal within a range from 0 to 100,000 ohms. Wiring is the same as shown for a Thermistor
temperature sensor (Fig. 8).
Resistive signals require a ResistiveInputPoint.
CAUTION
UI inputs provide optimum resistive-to-temperature resolution in the 10K ohm range. For a sensor with a range
far from 10K ohms (such as a 100-ohm or 1000-ohm sensor), resolution is so poor as to be unusable! To
successfully use such a sensor, install a transmitter that produces a Vdc or mA signal, and then wire the
transmitter to the UI according to the 0–10 Vdc or 4–20 mA instructions.
0–10 Vdc
Inputs support self-powered 0–10 Vdc sensors. Input impedance is greater than 5K ohms. 0–10 volt accuracy is ±2% of span,
without user calibration. Fig. 9 shows the wiring diagram for a 0–10 Vdc sensor.
0–10 Vdc sensors require a VoltageInputPoint.
Range: 0–10 Vdc
Input Impedance > 5K ohms
0—10Vdc Sensor
(self-powered sensor)
UI1 0V UI2 UI3 0V UI4
Cut and tape
shield wire back
at sensor.
Use point: VoltageInputPoint
Conversion: Linear
+
0—10
Vdc
–
Shielded, Twisted
Cable, 61m (200 ft)
maximum
Shield
Stud in enclosure
Fig. 9. 0–10 Vdc wiring.
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REMOTE I/O MODULE (IO-16-REM-H)
4–20 mA
Inputs support self-powered 4–20 mA sensors. Input accuracy is ±2% of span, without user calibration. Fig. 10 shows the wiring
diagram, which requires a 499 ohm resistor wired across the input terminals.
4–20 mA sensors also require the VoltageInputPoint.
4—20 mA Sensor
(self-powered sensor)
Range: 0—20 mA
Cut and tape
shield wire back
at sensor.
UI1 0V UI2 UI3 0V UI4
499 Ohm resistor
(supplied with
unit)
+
i
–
Shielded, Twisted
Cable, 61m (200 ft)
maximum
Use point: VoltageInputPoint
Conversion: 500 Ohm Shunt
secondary conversion: Linear
Stud in enclosure
Shield
Fig. 10. 4 to 20 mA wiring.
CAUTION
When using an externally powered 4–20 mA sensor, be sure to de-energize its power supply before making or
changing any wiring connections to the IO-16-REM-H module. This is in addition to removing power from the
IO-16-REM-H module.
It is important to not apply external power to the UI inputs without the 499 ohm resistor in place. Otherwise, even
a momentary application of power (say, 24Vdc) to the UI terminals without the resistor may damage circuitry on
the IO-16-REM-H. Only after completing all input wiring should you restore power to such external power
supplies.
Binary Input
Inputs support both pulse contacts and normal dry (equipment status) contacts.
• Pulse contacts may have a change-of-state (COS) frequency of up to 20 Hz with a 50% duty cycle.
Note: Minimum dwell time must be > 25ms. (Contacts must remain open at least 25ms and be closed at least 25ms.)
• Standard dry contacts must have a 1 Hz. (or less) COS frequency, with minimum dwell time > 500ms.
(Contacts must remain open at least 500ms and be closed at least 500ms.)
Both types of dry contacts support 3.3 Vdc open circuits or 330 µA short-circuit current. For a pulse contact, use the
CounterInputPoint in the station database. For other dry contacts, use the BooleanInputPoint.
Fig. 11 shows the wiring diagram (which is identical for both uses), but with different types of Nrio software points used for either
application.
15
95-7768—03
REMOTE I/O MODULE (IO-16-REM-H)
Pulse
UI1 0V UI2 UI3 0V UI4
Cut and tape
shield wire back
at contacts.
Range: Up to 20 Hz,
50% Duty Cycle
Minimum dwell time
> 25ms
Use point: CounterInputPoint
Shielded, Twisted
Cable, 61m (200 ft)
maximum
UI1 0V UI2 UI3 0V UI4
Cut and tape
shield wire back
at contacts.
Dry Contacts
Stud in enclosure
Shield
Use point: BooleanInputPoint
Shielded, Twisted
Cable, 61m (200 ft)
maximum
Shield
Stud in enclosure
Fig. 11. Binary input wiring.
Outputs
A IO-16-REM-H module has four (4) digital Relay Outputs and four (4) 0–10 volt Analog Outputs.
Relay Outputs
Each relay output is rated at 24 Vac or Vdc at 0.5A. Relay outputs have MOV (metal oxide varistor) suppressors to support
inductive-type loads such as heavy-duty relay coils.
WARNING
Relays are not rated for AC mains (line level) powered loads (instead, 24V maximum).
Use an external 24V transformer or a 24Vdc power supply to power loads.
Use a RelayOutputWritable in the station for each output. Fig. 12 shows an example wiring diagram.
24Vac
Transformer
(see above)
AC
Mains
(Line)
24Vac
24Vac
Loads
4
3
or
+
24Vdc
24Vdc Power
Supply
Use point: RelayOutputWritable
2
1
–
D1
1C2
D2 D3
3C4
D4
Fig. 12. Relay output wiring diagram.
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16
REMOTE I/O MODULE (IO-16-REM-H)
Note that the two common DO terminals (1C2, 3C4) are isolated from each other. This is useful if controlled loads are powered
from different circuits.
An LED status indicator for each relay (D1—D4) is located on the board (see Fig. 2), and also visible through the cover. Under
normal operation, each digital status LED indicates activity as follows:
• Off—relay open / no current flows.
• On—relay closed / load current flows.
Therefore, an On status indicates that the load is powered.
Analog Outputs
Analog outputs (AO) are referenced by the terminals labeled An and 0V (ground). Each AO can supply a maximum of 4 mA over
the entire 0 to 10Vdc range. For this 0–10V full range, the minimum input impedance of a device controlled by the AO must be
greater than 2500 ohms.
If the device’s input impedance is less than 2500 ohms, the 4 mA “max. current” limits the voltage output range. For example, if a
device with a 1000 ohm input impedance, the AO would work as a 0–4Vdc analog output.
Fig. 13 shows typical wiring for an AO. For each AO, use a VoltageOutputWritable in the station database.
0—10Vdc device
Input impedance
is greater than
2500 ohms
Common (–)
Use point: VoltageOutputWritable
Shielded, Twisted Cable,
61m (200 ft) maximum
Input (+)
AO1 0V AO2 AO3 0V AO4
Fig. 13. Analog output wiring diagram.
NRIO16 MODULE (SOFTWARE) REPRESENTATION
In the NiagaraAX station interface to the controller and IO-16-REM-H module, the module’s I/O is modeled in the station’s
NrioNetwork (copied from the nrio palette), under a child Nrio16Module “device level” component. This Nrio16Module has a
default name of “io16_n”.
NOTE: After a remote I/O module is discovered and added to the station under this NrioNetwork (each as one as an
Nrio16Module), the serial status LEDs for the controller’s RS-485 port continually flash, reflecting polling activity. At this
time, the “STATUS” LED on that IO-16-REM-H module lights solid green.
Any time a IO-16-REM-H module’s status LED is not lit solid green, all of its outputs are in “fail-safe” state (all relay outputs OFF, and all AOs are at a 0-volt level).
Blinking of a remote I/O module’s status LED occurs for two reasons, shown at different rates:
Rapid flash (low duty cycle), meaning the unit is unconfigured. Discovery and addition to the station database is
required.
Equal time on and off (50% duty cycle), meaning the unit is configured, but currently offline with the controller. Check
RS-485 wiring between the controller and remote I/O module.
Each input or output used requires a special Niagara Remote Input/Output (Nrio) point to be added in the station database.
These components act as the station interface to the physical I/O points. The Nrio points you need for each input or output type
are noted in previous wiring sections in boldface.
For Nrio software details, see the NiagaraAX NRIO Guide in Workbench online Help, or that document in PDF.
17
95-7768—03
REMOTE I/O MODULE (IO-16-REM-H)
POWER UP AND INITIAL CHECKOUT
1.
2.
3.
4.
Apply power to the IO-16-REM-H (depending on power source, this may mean plugging in a 6-position end connector, energizing a NPB-PWR-UN-H power supply module, or powering on the connected controller or third-party 12–
15Vdc power supply).
The IO-16-REM-H module’s board status LED (Fig. 2) will initially be blinking.
Using Workbench, open a station connection to the controller. If not already present, add an NrioNetwork component to the station’s Drivers Container.
Configure the NrioNetwork’s “Port Name” property to match the controller’s RS-485 port COM assignment (for example, COM2), and set its “Trunk” property to a unique number Nrio-wide (say, 2).
From the NrioNetwork’s Nrio Device Manager view, perform a Discover.
Each discovered remote I/O module will be listed in the top “Discovered” pane in the view, with each IO-16-REM-H
appearing as an “Io16” device type.
NOTE: To associate a discovered device to a specific IO-16-REM-H, issue a right-click “Wink Device” action—this cycles a
relay output on that IO-16-REM-H several times, which you can hear or see if nearby. This action is available both
before and after a discovered device is added to the station.
5.
6.
Add each discovered IO-16-REM-H to the station, renaming to reflect its actual location (see Note above). Each IO
module is represented by an Nrio16Module component.
Verify that each IO-16-REM-H module’s board status LED is now lit solid green.
NOTE: If an Nrio16Module is selected in the Nrio Device Manager view, and the Upgrade Firmware button is active, it is recommended that you upgrade its firmware. After selecting this, do not interrupt power to the IO-16-REM-H and controller, or the communications between them, until the firmware upgrade job finishes. Typically, this takes less than 2
minutes, with job competition signaled in the Workbench view.
7.
You can now discover, add, and configure IO points under each Nrio16Module’s Points device extension. For more
details about Nrio components, refer to the NiagaraAX NRIO Guide, also available in Workbench online Help (doc
Nrio).
REPLACEMENT PARTS
Servicing the IO-16-REM-H may call for replacement parts. There are two categories of parts:
• Standard Replacement Parts
• New Replacement Units
Standard Replacement Parts
Standard replacement parts are listed in Standard IO-16-REM-H replacement parts. and can be ordered from stock without
restriction. Standard replacement parts cannot be returned for credit and should be disposed of in an appropriate manner.
Table 4. Standard IO-16-REM-H replacement parts.
Part Number
H10716
H10429
Description
6 position pin-mount screw terminal block
6 position end-mount screw terminal plug
New Replacement Units
To replace a faulty unit, order and install a new IO-16-REM-H accessory module—please note that controller accessories do not
have special “field replacement units,” or FRUs, with separate part numbers.
If the faulty IO-16-REM-H is still in warranty, you can receive credit by returning it to Tridium. Be sure to contact Tridium for a
return authorization (RA) number before shipping an item for return credit. See “Returning a Defective Unit,” page 20, for more
details.
NOTE: Before ordering a new IO-16-REM-H, it is strongly recommended that you contact your normal technical support
resource to eliminate the possibility of a software issue or mis-configuration problem.
95-7768—03
18
REMOTE I/O MODULE (IO-16-REM-H)
REPLACING THE IO-16-REM-H
CAUTION
Before handling circuit boards, discharge any accumulated static by touching the nearby earth grounding point.
For details, see the “Static Discharge Precautions” section on page 6.
To replace the IO-16-REM-H accessory module in the field, proceed as follows:
REPLACING THE IO-16-REM-H ACCESSORY MODULE.
1.
Using the appropriate NiagaraAX software tool, back up the controller’s configuration to your PC.
2.
Remove power to the IO-16-REM-H. The unit should power down automatically.
NOTE: If any I/O points have voltage, turn the devices off or disconnect power to them.
3.
4.
Note positions of all I/O wiring going to the IO-16-REM-H module to be replaced, as well as for any other installed
modules. If necessary, label connectors and accessory modules to avoid mis-connection later (after IO-16-REM-H is
replaced). The software that runs on the controller expects the terminal positions to be the same in the replacement
IO-16-REM-H, in order to collect data from or to control the attached devices.
Unplug all connectors from the IO-16-REM-H, including all I/O connectors and earth ground wire.
NOTE: Removal of the four pin-mounted I/O connector plugs may be difficult. For related details about removing them, see
“About Screw Terminal Connectors,” page 8.
5.
6.
7.
8.
9.
10.
11.
Remove any screws or DIN rail clips securing the IO-16-REM-H, removing it from its mounting. See Fig. 1 for details
on removal from (and mounting onto) DIN rail.
Mount the replacement IO-16-REM-H as it was previously, using the same DIN rail location and/or screws.
Reconnect the earth ground wire to the IO-16-REM-H grounding lug.
Reconnect all I/O connectors to the IO-16-REM-H.
If any of your I/O points have voltage, turn the devices back on, or reconnect power to them.
Reconnect the 6-position end-mount connector, and ensure that power is applied to the IO-16-REM-H as well as the
controller. For related details, see the “Power up and Initial Checkout” section on page 18.
For more details, see the NiagaraAX NRIO Guide and Controller NiagaraAX Install and Startup Guide.
19
95-7768—03
REMOTE I/O MODULE (IO-16-REM-H)
Returning a Defective Unit
NOTE: If the defective unit is under warranty, please follow return instructions provided in this section.
If the unit is out of warranty, please discard it.
Do not return an out-of-warranty IO-16-REM-H module to Tridium.
There is no “return for repair-and-return” service available for any controller accessory products.
For proper credit on an in-warranty unit, ship the defective unit to Tridium within 30 days.
Prior to returning the unit, contact one of the following Tridium offices to obtain a return authorization (RA) number and other
instructions. Please provide:
• Product model • Serial number • Nature of the defect
United States
Phone: 804-254-7086, ext. 11
Return to:
Tridium, Inc.
2256 Dabney Road, Suite C
Richmond, VA 23230
Attn: Return Department RA# ____________
Asia/Pacific
Phone: +65 6887 5154
Fax: +65 6887 5342
Mobile: +65 9665 6024
Address:
Tridium Asia Pacific Pte Ltd
Email for technical support:
101 Cecil Street,
hclim@tridium.com
#10-11, Tong Eng Building,
Singapore 069533
Attn: Mr Lim Hoon Chiat, Engineering Manager RA# ____________
Sales: (Australia): Phone: +61 7 5539 1211
Fax: +61 7 5597 2334
(Japan): Phone: +81 044 829 1750
CERTIFICATIONS
Federal Communications Commission (FCC)
This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the
instruction manual, may cause interference with radio communications. It has been tested and found to comply with the limits for
a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protection
against such interference when operated in a commercial environment. Operation of this equipment in a residential area may
cause interference, in which case, users at their own expense will be required to take whatever measures may be required to
correct the interference. Any unauthorized modification of this equipment may result in the revocation of the owner's authority to
continue its operation.
Canadian Department of Communications (DOC)
• This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
• Cet appareil numerique de la classe A respecte toutes les exigencies du Reglement sur le material broilleur du
Canada.
95-7768—03
20
REMOTE I/O MODULE (IO-16-REM-H)
RoHS Compliance
This product meets RoHS (Restriction of Hazardous Substances) requirements of Directive EU 2002/95/EC.
CE Declaration of Conformity
Date: June 19, 2009
Application of Council Directive: EU/EMC 2004/108/EC
Manufacturer: Tridium Inc.
3951 Westerre Parkway, Suite 350
Richmond, Virginia 23233
United States of America
Manufacturer’s Representative: Steve Fey, President
Tridium Inc.
Product Model Numbers: IO-16-REM-H, with the following: MDR-20-15, 10722, 10903, 10724, 10723,
Type of Equipment: Electrical Equipment for Measurement, Control and Laboratory Use
EMS Standards Applied: Standard
Description
Criteria Met
EN 61000-6-4
Electro-Magnetic Compatibility Emissions, Generic
Compliant
EN 61000-6-2
Electro-Magnetic Compatibility Immunity
Compliant, as
noted below
CISPR 22: 2006
Conducted Emissions - Telecom
Compliant
CISPR 16-2-1 and
CISPR 16-2-2
Limits of Radio Disturbance - Conducted Emissions Pass Class A
Pass Class A
CISPR 16-2-3
Radiated Emissions
Compliant
IEC 61000-4-2
Electrostatic Discharge Immunity
Pass Class B
IEC 61000-4-3
Radiated Field Immunity
Pass Criteria A
IEC 61000-4-4
Electrical Fast Transient Immunity (Signal Ports)
Electrical Fast Transient Immunity (AC Power)
Pass Criteria B
Pass Criteria B
IEC 61000-4-5
Surge Immunity
Pass Criteria B
IEC 61000-4-6
Conducted Immunity
Pass Criteria B
ICES-003, Issue 4
Conducted Emissions - Voltage, Class A
Compliant
ICES-003, Issue 4
Radiated Emissions - Class A
Compliant
IEC 61000-4-11
Voltage Dips
Voltage Interrupts
Pass Criteria A
Pass Criteria C
IEC 61010-10-1:
90 +A1:92 + A2:95
Safety requirement for electrical equipment
for measurement, control and laboratory use
Pass
I, Steve Fey, President of Tridium Inc., hereby declare that the equipment specified above conforms to the above Directives and
Standards.
NOTE: For CE compliance, the NPB-PWR-H power supply cannot be used to power the IO-16-REM-H or a WEBs-AX Controller. In its place, use the DIN-mountable Tridium model MDR-20-15. This CE-approved power supply is 100-240Vac
input, with 15Vdc output at 20W.
Or, power the IO-16-REM-H using another third-party, CE approved, battery backed 12Vdc power supply.
A WEBs-AX Controller must be powered by a 15Vdc power supply with CE approval.
21
95-7768—03
REMOTE I/O MODULE (IO-16-REM-H)
TAB MOUNTING DIMENSIONS
3.25” (82.55mm)
0.170” Dia.
(4.32mm)
IO-16-REM-H
or
NPB-PWR-UN-H
4.00”
(101.6mm)
3.48”
(88.55mm)
2.50”
(63.50mm)
DIN mounting is
recommended over tab
mounting.
See Fig. 1.
3.62” (92mm)
NPB-PWR-UN-H or
IO-16-REM-H
IO-16-REM-H
3.25”
(82.55mm)
Distance between center of tabs from
one unit to another unit.
Fig. 14. Tab mounting dimensions.
95-7768—03
Note: Electronic and
printed versions of this
guide may not show
dimensions to scale.
Verify all measurements
before drilling.
22
23
95-7768—03
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
Honeywell Limited-Honeywell Limitée
35 Dynamic Drive
Toronto, Ontario M1V 4Z9
customer.honeywell.com
® U.S. Registered Trademark
© 2010 Honeywell International Inc.
95-7768—03 M.S. Rev. 04-10
Printed in U.S.A.